{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,18]],"date-time":"2026-04-18T01:49:16Z","timestamp":1776476956580,"version":"3.51.2"},"reference-count":65,"publisher":"American Society for Microbiology","issue":"4","license":[{"start":{"date-parts":[[2013,4,1]],"date-time":"2013-04-01T00:00:00Z","timestamp":1364774400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Infect Immun"],"published-print":{"date-parts":[[2013,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    \u03b22 (CD18) integrins with \u03b1-chains CD11a, -b, -c, and -d are important adhesion molecules necessary for leukocyte migration and cellular interactions. CD18 deficiency leads to recurrent bacterial infections and poor wound healing due to reduced migration of leukocytes to inflammatory sites. CD8 T cells also upregulate CD11a, CD11b, and CD11c upon activation. However, the role these molecules play for CD8 T cells\n                    <jats:italic>in vivo<\/jats:italic>\n                    is not known. To determine the function of individual \u03b22 integrins, we examined CD8 T cell responses to\n                    <jats:named-content xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" content-type=\"genus-species\" xlink:type=\"simple\">Listeria monocytogenes<\/jats:named-content>\n                    infection in CD11a-, CD11b-, and CD11c-deficient mice. The absence of CD11b or CD11c had no effect on the generation of antigen-specific CD8 T cells. In contrast, the magnitude of the primary CD8 T cell response in CD11a-deficient mice was significantly reduced. Moreover, the response in CD11a\n                    <jats:sup>\u2212\/\u2212<\/jats:sup>\n                    mice exhibited reduced differentiation of short-lived effector cells (KLRG1\n                    <jats:sup>hi<\/jats:sup>\n                    CD127\n                    <jats:sup>lo<\/jats:sup>\n                    ), although cytokine and granzyme B production levels were unaffected. Notably, CD11a deficiency resulted in greatly enhanced generation of CD62L\n                    <jats:sup>+<\/jats:sup>\n                    central memory cells. Surprisingly, CD8 T cells lacking CD11a mounted a robust secondary response to infection. Taken together, these findings demonstrated that CD11a expression contributes to expansion and differentiation of primary CD8 T cells but may be dispensable for secondary responses to infection.\n                  <\/jats:p>","DOI":"10.1128\/iai.00749-12","type":"journal-article","created":{"date-parts":[[2013,1,28]],"date-time":"2013-01-28T21:27:29Z","timestamp":1359408449000},"page":"1140-1151","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":44,"title":["CD11a Regulates Effector CD8 T Cell Differentiation and Central Memory Development in Response to Infection with Listeria monocytogenes"],"prefix":"10.1128","volume":"81","author":[{"given":"Tina O.","family":"Bose","sequence":"first","affiliation":[{"name":"Department of Immunology, Center for Integrated Immunology and Vaccine Research, University of Connecticut Health Center, Farmington, Connecticut, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Quynh-Mai","family":"Pham","sequence":"additional","affiliation":[{"name":"Department of Immunology, Center for Integrated Immunology and Vaccine Research, University of Connecticut Health Center, Farmington, Connecticut, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Evan R.","family":"Jellison","sequence":"additional","affiliation":[{"name":"Department of Immunology, Center for Integrated Immunology and Vaccine Research, University of Connecticut Health Center, Farmington, Connecticut, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juliette","family":"Mouries","sequence":"additional","affiliation":[{"name":"Department of Immunology, Center for Integrated Immunology and Vaccine Research, University of Connecticut Health Center, Farmington, Connecticut, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christie M.","family":"Ballantyne","sequence":"additional","affiliation":[{"name":"Section of Cardiology and Section of Atherosclerosis and Vascular Medicine, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Leo","family":"Lefran\u00e7ois","sequence":"additional","affiliation":[{"name":"Department of Immunology, Center for Integrated Immunology and Vaccine Research, University of Connecticut Health Center, Farmington, Connecticut, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"235","reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"crossref","first-page":"1326","DOI":"10.4049\/jimmunol.149.4.1326","article-title":"CD11b(Mac-1): a marker for CD8+ cytotoxic T cell activation and memory in virus infection","volume":"149","author":"McFarland HI","year":"1992","unstructured":"McFarlandHINahillSRMaciaszekJWWelshRM. 1992. 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Mechanisms of L-selectin regulation by activated T cells. J. Immunol. 159:1686\u20131694.","journal-title":"J. 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